Definitions for: Bladder


[n] a bag that fills with air
[n] a distensible membranous sac (usually containing liquid or gas)



Webster (1913) Definition: Blad"der, n. [OE. bladder, bleddre, AS. bl?dre,
bl?ddre; akin to Icel. bla?ra, SW. bl["a]ddra, Dan. bl[ae]re,
D. blaar, OHG. bl[=a]tara the bladder in the body of animals,
G. blatter blister, bustule; all fr. the same root as AS.
bl[=a]wan, E. blow, to puff. See Blow to puff.]
1. (Anat.) A bag or sac in animals, which serves as the
receptacle of some fluid; as, the urinary bladder; the
gall bladder; -- applied especially to the urinary
bladder, either within the animal, or when taken out and
inflated with air.

2. Any vesicle or blister, especially if filled with air, or
a thin, watery fluid.

3. (Bot.) A distended, membranaceous pericarp.

4. Anything inflated, empty, or unsound. ``To swim with
bladders of philosophy.'' --Rochester.

Bladder nut, or Bladder tree (Bot.), a genus of plants
(Staphylea) with bladderlike seed pods.

Bladder pod (Bot.), a genus of low herbs (Vesicaria) with
inflated seed pods.

Bladdor senna (Bot.), a genus of shrubs (Colutea), with
membranaceous, inflated pods.

Bladder worm (Zo["o]l.), the larva of any species of
tapeworm (T[ae]nia), found in the flesh or other parts
of animals. See Measle, Cysticercus.

Bladder wrack (Bot.), the common black rock weed of the
seacoast (Fucus nodosus and F. vesiculosus) -- called
also bladder tangle. See Wrack.


Blad"der, v. t. [imp. & p. p. Bladdered; p. pr. &
vb. n. Bladdering.]
1. To swell out like a bladder with air; to inflate. [Obs.]
--G. Fletcher.

2. To put up in bladders; as, bladdered lard.

Synonyms: vesica

See Also: bag, football, gallbladder, sac, urinary bladder

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